// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
// 
// This Source Code Form is subject to the terms of the Mozilla Public License 
// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_MESH_WITH_SKELETON_H
#define IGL_MESH_WITH_SKELETON_H
#include "../igl_inline.h"
#include <Eigen/Dense>
#include <string>

namespace igl
{
  // Mesh the interior of a given surface with tetrahedra which are graded (tend
  // to be small near the surface and large inside) and conform to the given
  // handles and samplings thereof.
  //
  // Inputs:
  //  V  #V by 3 list of mesh vertex positions
  //  F  #F by 3 list of triangle indices
  //  C  #C by 3 list of vertex positions
  //  P  #P list of point handle indices
  //  BE #BE by 2 list of bone-edge indices
  //  CE #CE by 2 list of cage-edge indices
  //  samples_per_bone  #samples to add per bone
  //  tetgen_flags  flags to pass to tetgen {""-->"pq2Y"} otherwise you're on
  //    your own and it's your funeral if you pass nonsense flags
  // Outputs:
  //  VV  #VV by 3 list of tet-mesh vertex positions
  //  TT  #TT by 4 list of tetrahedra indices
  //  FF  #FF by 3 list of surface triangle indices
  // Returns true only on success
  IGL_INLINE bool mesh_with_skeleton(
    const Eigen::MatrixXd & V,
    const Eigen::MatrixXi & F,
    const Eigen::MatrixXd & C,
    const Eigen::VectorXi & /*P*/,
    const Eigen::MatrixXi & BE,
    const Eigen::MatrixXi & CE,
    const int samples_per_bone,
    const std::string & tetgen_flags,
    Eigen::MatrixXd & VV,
    Eigen::MatrixXi & TT,
    Eigen::MatrixXi & FF);
  // Wrapper using default tetgen_flags
  IGL_INLINE bool mesh_with_skeleton(
    const Eigen::MatrixXd & V,
    const Eigen::MatrixXi & F,
    const Eigen::MatrixXd & C,
    const Eigen::VectorXi & /*P*/,
    const Eigen::MatrixXi & BE,
    const Eigen::MatrixXi & CE,
    const int samples_per_bone,
    Eigen::MatrixXd & VV,
    Eigen::MatrixXi & TT,
    Eigen::MatrixXi & FF);
}


#ifndef IGL_STATIC_LIBRARY
#  include "mesh_with_skeleton.cpp"
#endif

#endif
